A survey of nonprofit organizations showed that online fundraising has increased in the past year. Based on a random sample of 50 nonprofits, the mean one-time gift donation in the past year was $37, with a standard deviation of $10 Complete parts a and b below.

a. Construct a 99% confidence interval estimate for the population one-time gift donation. enter your response here less than or equalsmuless than or equalsenter your response here

(Type integers or decimals rounded to two decimal places as needed.)